Global asset manager Columbia Threadneedle Investments has appointed three investment professionals to its London-based investment teams. Ciara Fitzgerald has joined the firm as an investment grade credit portfolio manager and will be part of the investment grade credit portfolio management team, reporting to senior portfolio manager, Chris Hult. Fund selection, the Columbia Threadneedle wayNatasha Ebtehadj has been appointed global equities portfolio manager. Natasha previously spent 15 years at the Columbia Threadneedle, most recently in the global equities team, and has also held roles in multi-asset and Asian equities. Steve Nelson has joined the fixed income client portfolio management team in London with a focus on investment grade credit strategies.